A violent attack occurred outside the Zurich club "Kaufleuten" early Thursday morning, leaving a man with severe head injuries.

Four suspects, aged between 25 and 33, have been arrested following a tip from the public.

The suspects include individuals of Turkish, Swiss, and Portuguese nationalities.

The victim was hospitalized after being assaulted by the group, who fled the scene before police arrived.

Authorities are investigating the motive and circumstances of the attack.

The Zurich Cantonal Police and the Prosecutor's Office for Serious Violent Crimes are leading the investigation and are appealing for witnesses to come forward.